Bethesda has revealed teaser of Elder Scrolls VI or Starfield in during E3 2018 and we were expecting to get leads on what Bethesda plans for the two titles this E3 2019. During PAX Executive Producer Todd Howard shared info about the new game engine and also hinted that Bethesda does not have any plans on revealing about more the titles this year.
To add more it is clear that both titles will have a year or a minimum a couple of year to come publicly.
Through the above statement is pretty much clear the game will have a wait time. As per the source during PAX 2018 Bethesda shared an idea of Elder Scrolls 6 to be coming up on next generation console hardware.
Source: Gamespot